OFFSET
0,2
FORMULA
a(n) = Sum_{k=0..n} binomial(n,k) * A118971(k).
a(n) = hypergeom([4/5, 6/5, 7/5, 8/5, -n], [5/4, 3/2, 7/4, 2], -3125/256). - Stefano Spezia, Mar 03 2024
PROG
(PARI) my(N=30, x='x+O('x^N)); Vec(serreverse(x/(1/(1-x)^4+x))/x)
(PARI) a(n) = sum(k=0, n, binomial(n, k)*binomial(5*k+3, k)/(k+1));
CROSSREFS
KEYWORD
nonn
AUTHOR
Seiichi Manyama, Mar 03 2024
STATUS
approved